445421425201 has 9 divisors (see below), whose sum is σ = 460274735403. Its totient is φ = 431032970160.

The previous prime is 445421425199. The next prime is 445421425217. The reversal of 445421425201 is 102524124544.

The square root of 445421425201 is 667399.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 73223818801 + 372197606400 = 270599^2 + 610080^2 .

It is not a de Polignac number, because 445421425201 - 2¹ = 445421425199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445421425301) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20678605 + ... + 20700133.

It is an arithmetic number, because the mean of its divisors is an integer number (51141637267).

Almost surely, 2^445421425201 is an apocalyptic number.

445421425201 is the 667399-th square number.

445421425201 is the 333700-th centered octagonal number.

It is an amenable number.

445421425201 is a deficient number, since it is larger than the sum of its proper divisors (14853310202).

445421425201 is an frugal number, since it uses more digits than its factorization.

445421425201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43120 (or 21560 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 445421425201 its reverse (102524124544), we get a palindrome (547945549745).

The spelling of 445421425201 in words is "four hundred forty-five billion, four hundred twenty-one million, four hundred twenty-five thousand, two hundred one".